Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 503)

Spanning Tree Commands
Software Reference for x310 Series Switches
C613-50046-01 REV A AlliedWare Plus TM Operating System - Version 5.4.4C 19.13
show spanning-tree
Use this command to display detailed spanning tree information on the specified port or
on all ports. Use this command for RSTP, MSTP or STP.
For information on output options, see “Controlling “show” Command Output” on
page 1.37 .
Syntax show spanning-tree [interface <port-list>]
Mode User Exec and Privileged Exec
Usage Note that any list of interfaces specified must not span any interfaces that are not
installed.
A topology change counter has been included for RSTP and MSTP. You can see the
topology change counter for RSTP by using the show spanning-tree command. You can
see the topology change counter for MSTP by using the show spanning-tree mst
instance command.
Example To display spanning tree information about port1.0.3, use the command:
Parameter Description
interface Display information about the following port only.
<port-list> The ports to display information about. A port-list can be:
■
a switch port (e.g. port1.0.6) a static channel group (e.g. sa2)
or a dynamic (LACP) channel group (e.g. po2)
■
a continuous range of ports separated by a hyphen,
e.g. port1.0.1-1.0.4, or sa1-2, or po1-2
■
a comma-separated list of ports and port ranges,
e.g. port1.0.1,port1.0.4-1.0.6. Do not mix switch ports,
static channel groups, and dynamic (LACP) channel groups in the
same list
awplus# show spanning-tree interface port1.0.3